Valve.



J. P. LAVIGNE.

VALVE.

APPLIOATION FILED MAR. 23, 1908.

Patented July 27; 1909.

WITNESSES:

' JOSEPH P. LAVIGNE, OF DETROIT, MiCI-IIGAN.

VALVE.

Specification of Letters Patent.

Patented July 27, 1909.

Application filed March 23, 1908. Serial No. 422,851.

T all whom "it may concern:

Be it known that I, JOSEPH P. LAVIGNE, a

citizen of the United States of America, rc-- siding "at Detroit, in the county of WVayne and State of Michigan, have invented certain new and useful Improvements in Valves, of

' which the following is a specification, reference being bad therein to the accompanying drawings.

This invention relates to valves for radiators and similar uses, and more especially to those of the standard disk closure orso-callcd Jenkins disk type, and to means whereby they may be rapidly opened, and whereby use of packing around the valve stem is avoided. I

The invention consists in the matters hereinafter set forth, and more particularly pointed out in the pended claims. In the drawings, i gure 1 is a view in iongitudinal section of a closed valve embodying features of the invention. Fig 2 is a view in detail of a valve stem, a closing disk and housing, with the disk in raised or 0 en position. Fig.3 is a view in detail of a isk nut, with the adjacent part of the housing.

Referring tothc drawings, 1 indicates a casing of the usual exterior contour, having a steam inlet 2 interiorly screw-threaded for a pipe connection. and a side outlet or discharge 3 exteriorly fitted for a pipe coupling allof standard ty )6. i An annular valve seat at is formed on the casing interior in axial alin'ement with the inlet. A bonnet 5 is detachably secured as by screw-threads 6 in the casing opposite to and in axial alincinent with the valve seat. valve stem 7 is rotatably secured in a hollow axial boss 8 on the bonnet. stem is ground to seat on a flange 10 in the bonnet and held thereon by a spring 11 in compression between theflange and jamnuts 12in the stem.

The inner jam-nut is counterbored to telescope over the boss '8, and an elastic washcr13 isseated therein and yicldingly projects hard or metal washer 14 against the end of the spring 11 and the boss, thereby insuring against possibility o leak.

Near its lower end, the stem 7 is provided with projecting portions or lugs 16 forming between them widespiral or cani grooves of quick pitch and the lower ends of these lugs are hcvclod or inclined to form cam faces. The stem (Xtcnds downward a short distance beyond these lugs and its end 29 A collar 9 on therounded to form a sto to engage the yoke when the valve disk is liftod,as will be hereinafter more fullydcscribed.

A closure 17 of the standard Jenkins disk tvpc with vulcanized ruhlzcr face 18 or the like, ada ted to seal the valve seat 4, has a universa joint connection 19 with a yoke 20 which is integrally formed on the end "of a tubular'cam member 21. This membcr is movable in a depending sleeve 2 on the bonnet 5 and cars 2.3 on the yoke engage slots 24inthc sleeve preventing ro-- tation of said member and permit it to move longitudinally of the sleeve. Said member is tubular in form, being of greater internal diameter than the external diameter of the lugs 16 so that it will slide over said lugs and it is cut away from its upper edge downward. forming upwardly.extending spirally formed or inclined fingers 25 corresponding to the roovcs 15 which are adapted to be engaged by an inwardly projecting ledge or thickened portion 011 cach finger when the stem is turned. The up or ends of the fingers 25 are formed with a ievel or incl ne similar to the lower endsof the projecting lugs 16 on the stem and this upper inclined surface of each finger meets at its high end thcsurface forming the edge of the finger at an acute angle forming an upwardly pro jcoting point 26 and the low end of each inclined lower surface of each lug 16 meets the surface forming the edge of the adjacent groove at a similar acute angle and forms a downwardly projecting point 28.

When the parts are in the position shown in Fig. 1 and the stem is turned to the left by means of. the hand wheel 27 on its up )or end, the lower inclined surfaces of the ugs 16 will move away from the inclined surfaces of the upper ends of tho finger-s25, relieving the pressure which forced the disk 17 to seat and permitting said disk and cam member to rise. Further turning in the same direction will engage the points 26 beneath the points 28 of the thickened upper ends 30 of the arms and the cam member and disk will be quickly raised by the engagement of the fingers with the grooves owing to the pitch -of said grooves and fingers.

portion of the fingers and by reason of the inclination of sald surfaces, the cam member isforced downward, slowlv forcing the disk to its seat and, securelv. locking the same against any possibility of leakage.

When the cam-member 21 is raised as de-' of the yoke 20 as shown in Fig. 2 thus forming'a stop for thestem and preventing its further turning in that direction which would, if no stop was provided, tend to draw .the stem downward, compressing the. pack ing 13 and movelthe" collar Qirom its seat.

Various changes in the details of construction may be made without de arting from the s irit of the invention and do not limit mysef to any particular form or arrange-.

ment of parts. i

What I claim as my invention is:

1. The combination with a valve casing:

having a valve seat and a valve member to engagesald seat, of a cam member to operate the valve member and an operating stem, said cam memberand stem being formed with spirally arranged interlocking su faces having a quick pitch and inclined surfaces arranged to cooperate'to gradually force the disk to its seatafter the disengagement of the interlocking surfaces. V

2.- The combination.v with a valve casing having a valve seat and a valve member to enga e said seat, of a valve stem formed with spira grooves, atubular member to operate the valve member'and upwardly and spirally extendlng fingers on said memberto engage said grooves. I

3, 'The combination with a] valve casing having a valve seat and a valve member to engage said seat, of a valve stem, lugs on said stem forming spiral grooves and each formed with a downwardly projecting point at one side of each groove, a member connected to said valve member, and upwardly and spirally extending portions on said memher to engage said grooves and each formed with an upwardly extending point at one side to interlock with said downwardly extending points on the lugs when the stem. is turned in one direction to lead said portions into said grooves.

4. The combination with a valve casing having a valve seat and a' valve disk to en gage said seat, of a valvestem, lugs on said ,stem formed with spirally extending quick pitch grooves and each formed'with an inclined surface at its lower end, a tubular member to which the disk is connected, and upwardly and spirally extending fingers on said tubular member adapted to engage said grooves and each formed with an inclined of the lugs.

upper end toengage the inclined lower.end

5. The combinationwith avalve casing ,mem er and valve disk, and an end on said valve stem adapted to extend downward through the tubular member and engage said yoke when the disk is fully raised.

T- The combination with; a valve casingv having-a valve seat and a valve disk to err-J gage said seat, of a valve stemextending outward through the casing, a collar on said stem teen age a seat on the casing, yielding meansto old the stem' with the collar in contact with; its seat, lugs on the stem at a" distance fromiiits lower-end and forming spiral grooves, atubular member of greater .internal diameter thanithe external diameter of said lugs. andformedwith inwardly projecting spirally extending portions to en- 6 Saidgroovea'a yoke connecting said ga -tul%ular-member and said valve disk and adapted to be en aged by the lower end of said'stem when the disk is fully raised, and means for guiding and limiting the upward movement of said yoke.

7.v The combination with a valve casing having a valve seat and a valve disk to en Jgage said seat, of a bonnet secured in the open upper endof said casing opposite the seat, a tubular inwardly extending portion on the bonnet formed with uide slots, a tubular .outwardly extending hoss on the bon- 'net, a valve stem extending outward through said tubular portion and boss, a recessed nut on the outer end of saidstem, and an elastic washer within the nut engaging the end of the boss, a collar onsaid stem engaging a seat in the bonnet, a spring in the boss engaging the nut .to hold saidcollar to its seat, lugs on said stem at a distance from its inner endand forming spiral grooves, a tubular member in the tubular guide portion in the bonnet, spirally extending arms on said tubular member adapted to engage said grooves, 'and a yoke on the tubular member connerting said member and said valve disk and having lugs engaging the slots in said tubular guide portion and adapted to be engaged by the lower end of said stem when the disk is fully raised.

In testimony whereof l. ailix my signatu re 1n presence of two witnesses. JOSEPH P. LAVIGNE. Witnesses:

C. R.-STI0KNEY, OTTO F. BARTIIEL. 

